estrous

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estrous

A female cat in estrous calls out from a sunny windowsill.

Definition
  1. Adjective:
    • (Of female mammals, especially non-primates) Being in or relating to the physiological state of estrus (heat), characterized by receptivity to mating and ovulation. This term describes the specific period in the reproductive cycle when the female is sexually receptive and fertile.
    • Pertaining to the estrous cycle. It is used to describe phenomena, stages, or patterns associated with the recurring physiological changes in non-primate female mammals leading to estrus.
Usage Examples
  • Adjective:
    • The veterinarian confirmed the cow was estrous and ready for breeding.
    • Researchers studied the hormonal changes during the estrous phase.
    • The estrous cycle in rodents is much shorter than the menstrual cycle in humans.
Advanced Usage
  • "estrous state": The specific condition of being in estrus.
    • The detection of the estrous state is crucial for effective livestock management.
  • "estrous behavior": The patterns of activity and receptivity displayed by a female in estrus.
    • The study documented specific estrous behavior in the experimental group.
  • "estrous synchronization": A management technique to bring a group of females into estrus at the same time.
    • The farm uses hormones for estrous synchronization to plan breeding seasons.
Variants and Related Words
  • Estrus (n): The recurring period of sexual receptivity in female mammals; heat.
    • The cat went into estrus.
  • Estral (adj): A less common variant synonym for estrous.
  • Anestrous (adj): Not in estrus; pertaining to a period of sexual inactivity in the cycle.
    • The mare is currently anestrous.
  • Polyestrous (adj): Having multiple estrous cycles in a breeding season or year.
    • Cattle are polyestrous animals.
Synonyms
  • In heat: (Common, non-technical) Receptive to mating.
  • In season: (Common, especially for pets) In estrus.
  • Receptive: (General) Willing to mate.
Antonyms
  • Anestrous: Not in estrus.
  • Diestrous: Pertaining to the period of sexual quiescence between cycles.
estrous

A female cat in estrous calls out from a sunny windowsill.

Adjective
  1. (of lower mammals) showing or in a state of estrus; in heat
    • the estrous state
    • the estrous cycle

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